Lenze · Decentralised frequency inverter 8400 motec (AS-Interface option) · EDS84DMOTASI EN 4.0 - 09/2013 53
Diagnostics
LED status displays
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10 Diagnostics
For diagnosing troubled AS-i communication, LEDs can be mounted to the Communication Unit.
The LEDs, in conjunction with a transparent cover, can be procured from Lenze.
Moreover, the current bus status can be queried via code C13211
and the internal communication
status can be queried via code C13950
.
10.1 LED status displays
E84DG057
LED statuses for slave 1 and slave 2 Description
Green LEDs Red LEDs
Off Off There is no AS-i voltage.
On Off Everything is alright
• AS-i communication is possible.
Off On The slave is switched off; data exchange with the
master is not possible.
On On "No data exchange"
• The Data_Exchange_Disable flag is set; data
exchange with the master is not possible.
• The IC is waiting for a "Write Parameter Request".
• The communication monitoring reports "No data
exchange" or the IC has been reset via "Watchdog
IC Reset".
Blinking (2 Hz) On "No data exchange"
• The slave is waiting for address assignment by the
master.
• Data exchange with the master is not possible.
Blinking (2 Hz) Blinking (2 Hz) Peripheral error
• A signal indicating a peripheral error is pending at
the FID input.
• The LEDs are blinking alternately.
On Blinking (2 Hz) Fatal peripheral error with reset
• Data sampling pulse = LOW for more than 44 μs
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